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    Cloudy skies · Indiana

    How cloudy is Indianapolis?

    In a typical year, the sky over Indianapolis is mostly cloudy or overcast about 55% of the time, and clear or nearly clear about 32%.

    January is the cloudiest month, mostly cloudy about 68% of the time, and September the least cloudy, at about 40%. Across winter, December to February, it’s mostly cloudy about 67% of the time. That makes it the 10th cloudiest sky of the 116 US cities we track.

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    The forecast for the next 48 hours has the sky mostly cloudy about 38% of the time.

    Indianapolis is mostly cloudy about 67% of the winter, so the only thing faster than the cars round here is the sun leaving town.

    Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.

    The sky at a glance

    Mostly cloudy or overcast, all year55%
    Clear or nearly clear, all year32%
    Mostly cloudy, December to February67%
    Cloudiest monthJanuary, 68%
    Least cloudy monthSeptember, 40%

    Shares of hours across a typical year. Mostly cloudy means at least five eighths of the sky covered; clear or nearly clear means two eighths or less.

    Cities with about the same sky

    Every city’s sky, cloudiest first

    More about the weather here

    Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00093819. Airport sensors see cloud up to about 12,000 feet, so thin high cloud isn’t counted.